Country's foreign exchange reserves has increased by 3.27 billion US Dollars to hit an all-time high of 363.46 billion US dollars in the week to June 3. According to RBI release issued in Mumbai, the reserves had earlier touched a record high of 363.12 billion US dollars in the week to April 29.In the previous week, the reserves had declined by 711.6 million dollars to 360.19 billion dollars.The surge in the reserves during the week under review was on account of a healthy rise in foreign currency assets (FCAs), a major component of the overall reserves. FCA increased by 2.99 billion dollars to 339.22 billion dollars in the reporting week, central bank data showed.